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Yunus Sheets and Plates, based in Istanbul, Turkey, stands out as a top manufacturer and supplier of Super Duplex Steel Coils and Slitting Coils. They pride themselves on delivering high-quality products that are designed for outstanding strength, toughness, and resistance to corrosion. Using cutting-edge production methods and rigorous quality control, these coils are built to perform consistently in tough industrial settings. Yunus Sheets and Plates guarantees precision, reliability, and long-lasting durability in every item they produce. Super Duplex Steel Coils and Slitting Coils find their place in various industries, including oil and gas, chemical processing, marine, and power generation, where they provide exceptional resistance to harsh conditions and maintain structural integrity for critical applications.
These coils are made from a carefully balanced blend of austenitic and ferritic stainless steels, featuring around 25–26% chromium, 6–7% nickel, 3–4% molybdenum, and 0.3% nitrogen. This unique composition gives them remarkable resistance to pitting, crevice corrosion, and stress corrosion cracking, especially in aggressive chloride-rich environments. On the mechanical side, they boast a high tensile strength of 900–1000 MPa, impressive yield strength, and excellent toughness, even in low temperatures. Plus, they offer good fatigue resistance, weldability, and durability, making them ideal for high-performance industrial applications that demand both strength and corrosion resistance.
| Standards | ASTM A240 / ASME SA240 |
| Thickness | 0.2mm – 5.0mm |
| Width | 3.2mm – 1500mm & bove |
| Length | 2000mm, 2440mm, 3000mm, 5800mm, 6000mm, AS PER CUSTOMER’S REQUIREMENT |
| Hardness | Annealed – pickled (soft), Soft, Hard, Half Hard, Quarter Hard, Spring Hard , 1/4 hard, Yi hard,3/4 hard , full hard , extra hard |
| Test Certificate | Chemical test, Fitting test, Alloy test, Radiography test, Macro and micro-test, Hydrostatic test, Impact test. |
| Finish | Cold rolled stainless steel strips annealed & pickled 2 B Cold rolled stainless steel strips annealed & skin passed 2R Work harden for specific hardness BA/BE/ Matt Finish Cold rolled stainless steel strips |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
| Thickness (mm) | Width (mm) | Length (m) |
| 0.5 | 1000 | 250 |
| 0.8 | 1250 | 300 |
| 1 | 1500 | 350 |
| 1.2 | 1750 | 400 |
| 1.5 | 2000 | 450 |
| 2 | 1000 | 500 |
| 2.5 | 1250 | 550 |
| 3 | 1500 | 600 |
| 3.5 | 1750 | 650 |
| 4 | 2000 | 700 |
| 4.5 | 1000 | 750 |
| 5 | 1250 | 800 |
| 6 | 1500 | 850 |
| 7 | 1750 | 900 |
| 8 | 2000 | 950 |
| 9 | 1000 | 1000 |
| 10 | 1250 | 1050 |
| 11 | 1500 | 1100 |
| 12 | 1750 | 1150 |
| 15 | 2000 | 1200 |
| Thick. on base (millimeter) | Unit Wght / Coil (kilogram) |
|---|---|
| 3000 x1000 x3.0 | 78.0 |
| 3000 x1250 x4.5 | 143.0 |
| 3000 x1250 x6.0 | 180.0 |
| 3000 x1250 x8.0 | 210.0 |
Super Duplex steel coils and slitting coils offer unique advantages, including excellent corrosion resistance, especially in aggressive environments such as seawater, chemical and acidic conditions Their high chromium, molybdenum and nitrogen content ensures full excellent resistance to pitting, crack corrosion and stress corrosion. These lines provide extra strength and stability, making them suitable for heavy loads. Because of their excellent durability and fatigue resistance, they perform well at high pressures and extreme temperatures. In addition, super duplex steel coils offer excellent weldability and cost efficiency, making them ideal for industries such as oil and gas, marine and chemical processing.
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